Pumping-engine.



No. 736,448. PATENTED AUG. 1a, 1903.

c. J. PRINTZ. PUMPING ENGINE. A-PPLIGATION IILHH OUT. 17-, 1902.

no MODEL.

' M ."P- n EMMA; 2114mm.

UNITED STATES llatented August 18, 190%.

PATENT OFFICE.

CARL J. PRINTZ, OF MILIVAUKEE, WVISCONSIN.

PUMPING-ENGINE.

SPECIFICATION forming part of Letters Patent No. 736,443, dated August18, 1903. Application filed October 17, 1902- Serial No. 127,717. (NomodeLl .To a whom, it may concern:

Be it known that I, CARL J. PRINTZ, residing at Milwaukee, in the countyof Milwaukee and State of Wisconsin, have invented a new and usefulImprovement in Pumping- Engines, of which the following is adescription, reference being had to the accompanying drawing, which is apart of this specification.

This invention. relates to improvements in pumping-engines.

Pumping-engines as heretofore constructed (1 refer more especially tothose used for pumping large volumes of water for the supply of citiesand for numerous other purposes) are open to some serious objections,which are due in a measure to shallow basements or cramped spaces inwhich the pumpin g portions of the engines have to be located.

In the pumping-engines now in common use the suction-valves are locatedabove the intake or the inlet-chamber, and this, I believe, is aseriousobjection, for the reason that more or less air is mingled with thewater which enters the inlet, and when the suction valves are locatedabove the inlet-chamber it follows that the water passing into theplunger-chamber, which will be from the upper portion of the water inthe inlet-chamber, will, owing to the fact that air in said water tendsto rise in the inlet-chamber, have more or less air mingled therewith,and this is especially so when pumping from Artesian wells or pumpingsewage. The fluid passing through most of the pumping-engines of theusual types has a more or less circuitous route to travel between theinlet and the discharge ports. Many of said pumping-engines are soconstructed that an air-cushion is possible in the plunger-chamber. Inother types of pumping-engines the air-cushion in connection with theinlet-chamber is connected therewith through a more or less restrictedpassage, and this renders the air-cushion lazy and ineflicient.

The object of this invention is to produce a pumping-engine which willbe free from the objections common to the pumping-engines as heretoforeconstructed.

A further object of this invention is to produce asingle-actingpumping-enginein which the suction-valves are located below theinlet-chamber to insure that the water which passes from theinlet-chamber to the plunger-chamber will be taken from that portion ofthe water within the inlet-chamber which is freest from air, and thiswater will be the bottom portion of the water in the inlet-chamber.

A still further object of this invention is to produce a pumping-enginewhich will present no pockets or spaces in the plungerchamber in whichair can accumulate to form an air-cushion, and thus produce awaterhammer.

A still further object of this invention is to produce a pumping enginehaving an aircushion chamber for the intake communicating with theinlet-chamber by a substantially unrestricted channel or passage and solocated that the air from the water in the inlet-chamber may readilypass into it.

A still further object of this invention is to produce a pumping-enginewhich will be relatively small in height, which will have an activeair-cushion for the inlet, in which it will be practically impossiblefor air to pass into 'the plunger-chamber, in which air which does passto the plunger-chamber can find no lodgment there, and which will besimple in construction and comparatively cheap to manufacture.

The above and other objects I attain by means of a pumping-engine theelements of which are constructed and arranged as will be hereinafterdescribed in the specification and illustrated in the drawing presentedherewith.

The figure of the drawing is a central sectional elevation of thepumping portion of a pumping-engine embodying this invention.

The engine proper and all of that portion thereof for operating the pumpare herein omitted, as they form no portion of this invention.

In the drawing, which represents a practical embodiment of thisinvention, the pump portion of the engine consists of a plungerchamber2, preferably formed of three castings 3,- 4, and 5, of suitable shapeand boltedor otherwise secured together in any suitable manner. Suitablysupported within the upper portion of casting 3 is a valve-plate 6, andsecured to said plate and depending therefrom are a plurality ofsuitable suction-valves IOO ion chamber 16 being in direct communica 7.Suitably supported in the upper portion of casting 5 is a valve-plate 8,extending above and secured to which are a plurality of discharge-valves9. The valves 7 and 9 may be of any suitable construction or design andin themselves do not form a portion of this invention. Formed in the topof the central section 4 of the plunger-chamber is a suitablestuffing-gland 10, and located within said gland is a pump-plunger 11,adapted, by means of a plunger-rod 12, connected to the engine portionof the pump, to be reciprocated. The upper line 13 or thetop of theinterior of the plunger-cha-mber,it will be seen, is straight acrossfrom end to end or, in other words, horizontal, whereby no air whichenters the plunger-chamber is allowed to remain; but the air which doesenter said chamber' will pass on out through the dischargevalves 9. Theupper line of the plungerchamber may, if desired, incline up toward thedischarge-valves, so that any air which enters the plunger-chamber maytravel from it more easily.

Secured to the top of end section 3 of the plunger-chamber is aninlet-chamber 14, and this inlet-chamber is provided with an intakeport15. Secured to the top of inlet-chamber l4, and preferably directly inline therewith, is an inlet air-cushion chamber 16.

The inlet air-cushion chamber, if desired, may be attached to theinlet-pipe before it enters the inlet-chamber by an unrestrictedchannel; but the preferable location, however, is directly above theinlet-chamber, as shown in the drawing.

Secured to the top of the end section 5 of the plunger-chamber is adischarge-chamber 17, wlgich is provided with-an outlet-port 18, andsecured to the top of the discharge-chamber is a-discharge air-cushionchamber 19.

The inlet, the discharge, and the plunger chambers may, if desired, beequipped with suitable and proper manholes, and the inlet air-cushionchamber and the discharge aircushion chamber may be equipped withsuitable gage-glasses and valves for snifting the superfluous air fromthem.

It will be seen that while the pump is in operation and water isadmitted to the inletchamber air from said water will not only beallowed to easily rise therefrom to the inlet air-cushion chamber; butthe inlet air-cushtion with the inlet-chamber 14 through an unrestrictedpassage will form an active aircushion for the incoming fluid. The waterpassing through intake-valves 7 is drawn from the lower portion of thewater in the inlet-chamber, and as this water is that which has theleast amount of air mingled with it it will be seen that comparativelylittle air will be drawn into the plunger-chamber, and with myconstruction it will be impossible for the plunger-chamber to be filledwith froth or foam, as is commonly the case in the pumping-engines asheretofore constructed.

The air which does pass to the plunger-chamber will immediately flow outthrough the discharge-valves 9 and rise in the dischargechamber and passinto air-cushion'chamber 19, from which when it grows excessive it maybe snifted.

It will be understood that the particular manner in which the severalportions of this device are shown as being formed is suggestive only. Ifdesired, the contour and formation of the several portions may bevaried. The air-cushion chambers may be formed integral with thechambers below them, the valve-plates may be formed integral with thewalls of the chambers in which they are 10- cated, the valve-plates maybe inclined at any desired angle to the horizontal, and numerous otherchanges maybe made without departing from the spirit of my invention.

What I claim as my invention is- 1. In a pumping-engine, aplunger-chamber, an inlet cushion-chamber located above theplunger-chamber, inlet-valves between the inlet-chamber and theplunger-chamber, and an inlet-port leadinginto said inlet-chamber.

2. In a single-acting pumping-engine, a

, plunger-chamber, an inlet cushion-chamber located above theplunger-chamber, inletvalves between the inlet-chamber and theplunger-chamber, and an inlet-port leading into said plunger-chamberabove said inletvalves.

3. In a single-acting pumping-engine, a plunger-chamber, an inletcushion-chamber located above the plunger-chamber, inletvalves locatedbetween the inlet and plunger chambers, a discharge-chamber locatedabove the upper line of the plunger-chamber, and

discharge-valves located between the discharge and plunger chambers.

4. In a pumping-engine, a plunger-chamber, an inlet cushion-chamberlocated above the plunger-chamber, inlet-valves located between theinlet and plunger chambers, an intake-port leading into saidinlet-chamber above said valves, a discharge-chamber located above theplunger-chamber, and discharge-valveslocated between the discharge andplunger chambers.

5. In a pumping-engine, a plunger-chamber, an inlet-chamber,inlet-valves at the bottom of the inlet-chamber and between the inletand plunger chambers, an inlet-port leading into said inlet-chamber, aninlet air-cushion chamber communicating with said inletport through asubstantially unrestricted passage, a discharge-chamber located abovethe plunger-chamber, a discharge air-cushion chamber in communicationwithsaid discharge-chamber, and discharge-valves located between saiddischarge-chamber and said plunger-chamber above the upper line of saidplunger-chamber.

6. In a pumping-engine, a plunger-chamber, an inleirchamber,inlet-valves at the bottom of the inlet-chamber and between said in- IIClet-chamber and said plunger-chamber, an inlet air-cushion chamber indirect communication through an unrestricted passage with saidinlet-chamber, an inlet-port leading into said inletchamber, a dischargechamber, valves interposed between said discharge and plungerchambers,anoutlet-portleadingfrom said discharge-chamber and a dischargeaircushion chamber in direct communication through an unrestrictedpassage with said discharge-chamber.

7. In asingle-acting pumping-engine, a plunger-chamber, an inlet-chamberlocated above the upper line of said plunger-chamber, a valvesupportbetween the plunger and inlet chambers, a plurality of valves dependingfrom said support into the plunger-chamber, and an inlet-port leadinginto said inlet-chamber above said Valves.

8. In a single-acting pumping-engine, a plunger-chamber, aninlet-chamber located above the plunger-chamber, a valve-support betweenthe plunger and inlet chambers, a plurality of valves depending fromsaid sup: port into the plunger-chamber, a dischargechamber locatedabove the plunger-chamber, and discharge-valves located between thedischarge and plunger chambers.

9. In a pumping-engine, a plunger-chamber, an inlet-chamber, avalve-support between the plunger and inlet chambers, a plurality ofvalves depending from said support into the plunger-chamber, aninlet-port leaddischarge-chamber and said plunger-chamber above theupper line of said plunger-chamber.

10. In a pumping-engine, a plunger-chamber, an inlet-chamber locatedabove the upper line of said plunger-chamber, a valve-support betweenthe plunger and inlet chambers, a plurality of valves depending fromsaid support into the plunger-chamber, an inlet aircushion chamber indirect communication through an unrestricted passage with saidinlet-chamber, an inlet-port leading into said inlet-chamber, adischarge-chamber, valves interposed between said discharge and plungerchambers, an outlet-port leading from said discharge-chamber and adischarge air-cushion chamber in direct communication through anunrestricted passage with said dischargechamber.

In testimony whereof I affix my signature in presence of two Witnesses.

CARL J. PRINTZ.

